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FB1000-2 MANUAL Page 6 7608177 Rev. A 8/9/02
After selecting a control mode and setting the limit and timed run parameters if desired, press the
Run key to energize the power supply output. The power supply output will ramp up to the
appropriate setpoint, while not allowing any limit parameter to be exceeded. If any limit
parameter should be exceeded, then the power supply will crossover control modes, making the
limit parameter the new control setpoint. The run mode display shows the controlled parameter
highlighted, and will automatically change if a crossover has occurred.
To stop a run in progress, press the Run key, the Stop key, or the gray ON/OFF key. The display
will change to "STOP" signifying that the output is no longer energized, and display the conditions
just before the stop. To pause a run in progress, press the Pause key. The display will change to
"PAUSE" signifying that the output is no longer energized, and that the run can be resumed.
Pressing Run or Pause resumes the run from the previous point (i.e. for a timed run). Only a run
that has been paused can be restarted. After Stopping a run, or to change parameters of a (paused)
run, you must cycle the control logic off and then back on by pressing the gray ON/OFF key.
During a run, the display will show the actual values of voltage, current, power, and temperature.
The time value displays elapsed time for an untimed run, or time left for a timed run. The volt-
hour value displays the accumulated volt-hour value for the run.
Constant Voltage Operations
From the mode selection screen, select constant voltage operation by pressing the appropriate
function key located to the right of the display. To get to the selection screen from an operating
screen, press Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF
key and selecting MANUAL. The FB1000 will display the last saved values for constant voltage
mode. To switch between volts/current/power and time/volt-hours, press function key F1. To
change a parameter, press the function key located to the right of the display, next to the parameter
you wish to change. The FB1000 will allow a new value to be entered using the keypad numeric
keys. Press the function key labeled "Enter" to complete the new setting. Press Clear to erase
previous keystrokes. Press Exit to cancel entering a new value. The FB1000 will not accept a
voltage setpoint outside of the allowed range. Press Clear to re-enter an appropriate value.
The limit parameters are normally set to the power supply maximum values. The FB1000 will not
accept a limit parameter outside of the allowed range.
In addition, the FB1000 will never exceed the maximum power output specification of 250W.
Constant Current Operations
From the mode selection screen, select constant current operation by pressing the appropriate
function key located to the right of the display. To get to the selection screen from an operating
screen, press Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF
key and selecting MANUAL. The FB1000 will display the last saved values for constant current
mode. To switch between volts/current/power and time/volt-hours, press function key F1. To
change a parameter, press the function key located to the right of the display, next to the parameter
you wish to change. The FB1000 will allow a new value to be entered using the keypad numeric
keys. Press the function key labeled "Enter" to complete the new setting. Press Clear to erase
previous keystrokes. Press Exit to cancel entering a new value. The FB1000 will not accept a
current setpoint outside of the allowed range. Press Clear to re-enter an appropriate value.
The limit parameters are normally set to the power supply maximum values. The FB1000 will not
accept a limit parameter outside of the allowed range.
In addition, the FB1000 will never exceed the maximum power output specification of 250W.
Constant Power Operations
From the mode selection screen, select constant power operation by pressing the appropriate
function key located to the right of the display. To get to the selection screen from an operating
screen, press Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF